Hi,
I got my system set up to feed in excess PV power, with a limit set to maximum 8500W.
Today when my Pylontech battery bank reached +98% it started to wind down charging and as such the PV export should start.
Unfortunatly it doesnt seem that it works.
Can it be a side effect of the work that was done in ~25 with ESS since it has worked flawlessly before.
/Kaj
Hi, can you clarify if by previous version you mean the last beta or last production version?
If you rollback versions, does it work again?
What PV are you using, and how is it configured?
Hi!
I been been on the beta track for a long time so it has worked with a previous beta. Last time I did sell due to excess PV was on 6th of February. Don’t know what version i was running at that time, but my backup image is ~24 so it could have been that one or a slightly earlier one. There seems to have been some selling on 1st of February aswell and perhaps on the 10th of February as well (just a short 1.1 Kwh)
I see from the eventlog that I ran DESS during the 6th of feb but in Green mode so it shouldnt have sold unless there was Excess PV.
I will test rollback to ~24 tomorrow if the sun is shining again and I hit +98% SoC.
PV is DC attached using multiple mppts, both canbus and ve.direct.
Installation ID 108407 if someone wants to login and have a check under the hood.
/Kaj
Hi,
Just to update the thread - today the system worked as expected - i’e started selling surplus PV when the batterybank started to get full.
I’ll continue to monitor if the error happens again or if it was a onetime bug.
/Kaj
Since v3.50, I’ve also been experiencing this issue with DC feed-in.
Initially, the battery charges, and when it reaches around 94% SoC, you can see the charging current slowly decreasing while the feed-in current increases. Then, suddenly, the MPPT charge controllers are shut down to 0 watts (as if DC feed-in was disabled, even though it is enabled). After about 15 to 20 minutes, the GX device seems to detect this error and reactivates the MPPT charge controllers, allowing DC feed-in to work as expected.
This doesn’t happen all the time, but quite frequently. I believe it also depends on the active loads at that moment.
I have 4 MPPT charge controllers of various types connected and all of them switch down simultaneously. This recorded chart show this situation between 12:00 and 12:15
Workaround: If I set the “Grid setpoint” in ESS to -1000 (intentionally feeding in 1000 W), wait for a minute, and then set it back to 0, the DC feed-in works normally again.
